granicus.if.org Git - imagemagick/blob - MagickCore/coder.c

   1 /*
   2 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   3 %                                                                             %
   4 %                                                                             %
   5 %                                                                             %
   6 %                   CCCC   OOO   DDDD    EEEEE  RRRR                          %
   7 %                  C      O   O  D   D   E      R   R                         %
   8 %                  C      O   O  D   D   EEE    RRRR                          %
   9 %                  C      O   O  D   D   E      R R                           %
  10 %                   CCCC   OOO   DDDD    EEEEE  R  R                          %
  11 %                                                                             %
  12 %                                                                             %
  13 %                     MagickCore Image Coder Methods                          %
  14 %                                                                             %
  15 %                              Software Design                                %
  16 %                                John Cristy                                  %
  17 %                                 May 2001                                    %
  18 %                                                                             %
  19 %                                                                             %
  20 %  Copyright 1999-2012 ImageMagick Studio LLC, a non-profit organization      %
  21 %  dedicated to making software imaging solutions freely available.           %
  22 %                                                                             %
  23 %  You may not use this file except in compliance with the License.  You may  %
  24 %  obtain a copy of the License at                                            %
  25 %                                                                             %
  26 %    http://www.imagemagick.org/script/license.php                            %
  27 %                                                                             %
  28 %  Unless required by applicable law or agreed to in writing, software        %
  29 %  distributed under the License is distributed on an "AS IS" BASIS,          %
  30 %  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.   %
  31 %  See the License for the specific language governing permissions and        %
  32 %  limitations under the License.                                             %
  33 %                                                                             %
  34 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  35 %
  36 %
  37 */
  38 \f
  39 /*
  40   Include declarations.
  41 */
  42 #include "MagickCore/studio.h"
  43 #include "MagickCore/blob.h"
  44 #include "MagickCore/client.h"
  45 #include "MagickCore/coder.h"
  46 #include "MagickCore/coder-private.h"
  47 #include "MagickCore/configure.h"
  48 #include "MagickCore/draw.h"
  49 #include "MagickCore/exception.h"
  50 #include "MagickCore/exception-private.h"
  51 #include "MagickCore/hashmap.h"
  52 #include "MagickCore/log.h"
  53 #include "MagickCore/memory_.h"
  54 #include "MagickCore/option.h"
  55 #include "MagickCore/semaphore.h"
  56 #include "MagickCore/string_.h"
  57 #include "MagickCore/splay-tree.h"
  58 #include "MagickCore/token.h"
  59 #include "MagickCore/utility.h"
  60 #include "MagickCore/utility-private.h"
  61 #include "MagickCore/xml-tree.h"
  62 \f
  63 /*
  64   Define declarations.
  65 */
  66 #define MagickCoderFilename  "coder.xml"
  67 \f
  68 /*
  69   Typedef declarations.
  70 */
  71 typedef struct _CoderMapInfo
  72 {
  73   const char
  74     *magick,
  75     *name;
  76 } CoderMapInfo;
  77 \f
  78 /*
  79   Static declarations.
  80 */
  81 static const CoderMapInfo
  82   CoderMap[] =
  83   {
  84     { "3FR", "DNG" },
  85     { "8BIM", "META" },
  86     { "8BIMTEXT", "META" },
  87     { "8BIMWTEXT", "META" },
  88     { "AFM", "TTF" },
  89     { "A", "RAW" },
  90     { "AI", "PDF" },
  91     { "APP1JPEG", "META" },
  92     { "APP1", "META" },
  93     { "ARW", "DNG" },
  94     { "AVI", "MPEG" },
  95     { "BIE", "JBIG" },
  96     { "BMP2", "BMP" },
  97     { "BMP3", "BMP" },
  98     { "B", "RAW" },
  99     { "BRF", "BRAILLE" },
 100     { "BGRA", "BGR" },
 101     { "CMYKA", "CMYK" },
 102     { "C", "RAW" },
 103     { "CAL", "CALS" },
 104     { "CANVAS", "XC" },
 105     { "CR2", "DNG" },
 106     { "CRW", "DNG" },
 107     { "CUR", "ICON" },
 108     { "DCR", "DNG" },
 109     { "DCX", "PCX" },
 110     { "DFONT", "TTF" },
 111     { "EPDF", "PDF" },
 112     { "EPI", "PS" },
 113     { "EPS2", "PS2" },
 114     { "EPS3", "PS3" },
 115     { "EPSF", "PS" },
 116     { "EPSI", "PS" },
 117     { "EPS", "PS" },
 118     { "EPT2", "EPT" },
 119     { "EPT3", "EPT" },
 120     { "ERF", "DNG" },
 121     { "EXIF", "META" },
 122     { "FILE", "URL" },
 123     { "FRACTAL", "PLASMA" },
 124     { "FTP", "URL" },
 125     { "FTS", "FITS" },
 126     { "G3", "FAX" },
 127     { "GIF87", "GIF" },
 128     { "G", "RAW" },
 129     { "GRANITE", "MAGICK" },
 130     { "GROUP4", "TIFF" },
 131     { "K25", "DNG" },
 132     { "KDC", "DNG" },
 133     { "H", "MAGICK" },
 134     { "HTM", "HTML" },
 135     { "HTTP", "URL" },
 136     { "ICB", "TGA" },
 137     { "ICC", "META" },
 138     { "ICM", "META" },
 139     { "ICO", "ICON" },
 140     { "IMPLICIT", "***" },
 141     { "IPTC", "META" },
 142     { "IPTCTEXT", "META" },
 143     { "IPTCWTEXT", "META" },
 144     { "ISOBRL", "BRAILLE" },
 145     { "JBG", "JBIG" },
 146     { "JNG", "PNG" },
 147     { "JPC", "JP2" },
 148     { "J2C", "JP2" },
 149     { "J2K", "JP2" },
 150     { "JPG", "JPEG" },
 151     { "JPX", "JP2" },
 152     { "K", "RAW" },
 153     { "LOGO", "MAGICK" },
 154     { "M2V", "MPEG" },
 155     { "M4V", "MPEG" },
 156     { "M", "RAW" },
 157     { "MNG", "PNG" },
 158     { "MOV", "MPEG" },
 159     { "MP4", "MPEG" },
 160     { "MPG", "MPEG" },
 161     { "MPRI", "MPR" },
 162     { "MEF", "DNG" },
 163     { "MRW", "DNG" },
 164     { "MSVG", "SVG" },
 165     { "NEF", "DNG" },
 166     { "NETSCAPE", "MAGICK" },
 167     { "NRW", "DNG" },
 168     { "O", "RAW" },
 169     { "ORF", "DNG" },
 170     { "OTF", "TTF" },
 171     { "P7", "PNM" },
 172     { "PAL", "UYVY" },
 173     { "PAM", "PNM" },
 174     { "PBM", "PNM" },
 175     { "PCDS", "PCD" },
 176     { "PDFA", "PDF" },
 177     { "PEF", "DNG" },
 178     { "PEF", "DNG" },
 179     { "PFA", "TTF" },
 180     { "PFB", "TTF" },
 181     { "PFM", "PNM" },
 182     { "PGM", "PNM" },
 183     { "PGX", "JP2" },
 184     { "PICON", "XPM" },
 185     { "PJPEG", "JPEG" },
 186     { "PM", "XPM" },
 187     { "PNG24", "PNG" },
 188     { "PNG32", "PNG" },
 189     { "PNG8", "PNG" },
 190     { "PPM", "PNM" },
 191     { "PSB", "PSD" },
 192     { "PTIF", "TIFF" },
 193     { "RADIAL-GRADIENT", "GRADIENT" },
 194     { "RAF", "DNG" },
 195     { "RAS", "SUN" },
 196     { "RGBA", "RGB" },
 197     { "RGBO", "RGB" },
 198     { "R", "RAW" },
 199     { "ROSE", "MAGICK" },
 200     { "RW2", "DNG" },
 201     { "SHTML", "HTML" },
 202     { "SR2", "DNG" },
 203     { "SRF", "DNG" },
 204     { "SVGZ", "SVG" },
 205     { "TEXT", "TXT" },
 206     { "TIFF64", "TIFF" },
 207     { "TIF", "TIFF" },
 208     { "TTC", "TTF" },
 209     { "UBRL", "BRAILLE" },
 210     { "VDA", "TGA" },
 211     { "VST", "TGA" },
 212     { "WIZARD", "MAGICK" },
 213     { "WMV", "MPEG" },
 214     { "WMFWIN32", "EMF" },
 215     { "WMZ", "WMF" },
 216     { "X3f", "DNG" },
 217     { "XMP", "META" },
 218     { "XTRNARRAY", "XTRN" },
 219     { "XTRNBLOB", "XTRN" },
 220     { "XTRNFILE", "XTRN" },
 221     { "XTRNIMAGE", "XTRN" },
 222     { "XV", "VIFF" },
 223     { "Y", "RAW" },
 224     { "YCbCrA", "YCbCr" }
 225  };
 226
 227 static SemaphoreInfo
 228   *coder_semaphore = (SemaphoreInfo *) NULL;
 229
 230 static SplayTreeInfo
 231   *coder_list = (SplayTreeInfo *) NULL;
 232
 233 static volatile MagickBooleanType
 234   instantiate_coder = MagickFalse;
 235 \f
 236 /*
 237   Forward declarations.
 238 */
 239 static MagickBooleanType
 240   InitializeCoderList(ExceptionInfo *),
 241   LoadCoderLists(const char *,ExceptionInfo *);
 242 \f
 243 /*
 244 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 245 %                                                                             %
 246 %                                                                             %
 247 %                                                                             %
 248 +   C o d e r C o m p o n e n t G e n e s i s                                 %
 249 %                                                                             %
 250 %                                                                             %
 251 %                                                                             %
 252 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 253 %
 254 %  CoderComponentGenesis() instantiates the coder component.
 255 %
 256 %  The format of the CoderComponentGenesis method is:
 257 %
 258 %      MagickBooleanType CoderComponentGenesis(void)
 259 %
 260 */
 261 MagickPrivate MagickBooleanType CoderComponentGenesis(void)
 262 {
 263   AcquireSemaphoreInfo(&coder_semaphore);
 264   return(MagickTrue);
 265 }
 266 \f
 267 /*
 268 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 269 %                                                                             %
 270 %                                                                             %
 271 %                                                                             %
 272 +   C o d e r C o m p o n e n t T e r m i n u s                               %
 273 %                                                                             %
 274 %                                                                             %
 275 %                                                                             %
 276 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 277 %
 278 %  CoderComponentTerminus() destroys the coder component.
 279 %
 280 %  The format of the CoderComponentTerminus method is:
 281 %
 282 %      CoderComponentTerminus(void)
 283 %
 284 */
 285 MagickPrivate void CoderComponentTerminus(void)
 286 {
 287   if (coder_semaphore == (SemaphoreInfo *) NULL)
 288     AcquireSemaphoreInfo(&coder_semaphore);
 289   LockSemaphoreInfo(coder_semaphore);
 290   if (coder_list != (SplayTreeInfo *) NULL)
 291     coder_list=DestroySplayTree(coder_list);
 292   instantiate_coder=MagickFalse;
 293   UnlockSemaphoreInfo(coder_semaphore);
 294   DestroySemaphoreInfo(&coder_semaphore);
 295 }
 296 \f
 297 /*
 298 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 299 %                                                                             %
 300 %                                                                             %
 301 %                                                                             %
 302 +   G e t C o d e r I n f o                                                   %
 303 %                                                                             %
 304 %                                                                             %
 305 %                                                                             %
 306 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 307 %
 308 %  GetCoderInfo searches the coder list for the specified name and if found
 309 %  returns attributes for that coder.
 310 %
 311 %  The format of the GetCoderInfo method is:
 312 %
 313 %      const CoderInfo *GetCoderInfo(const char *name,ExceptionInfo *exception)
 314 %
 315 %  A description of each parameter follows:
 316 %
 317 %    o name: the coder name.
 318 %
 319 %    o exception: return any errors or warnings in this structure.
 320 %
 321 */
 322 MagickExport const CoderInfo *GetCoderInfo(const char *name,
 323   ExceptionInfo *exception)
 324 {
 325   assert(exception != (ExceptionInfo *) NULL);
 326   if ((coder_list == (SplayTreeInfo *) NULL) ||
 327       (instantiate_coder == MagickFalse))
 328     if (InitializeCoderList(exception) == MagickFalse)
 329       return((const CoderInfo *) NULL);
 330   if ((coder_list == (SplayTreeInfo *) NULL) ||
 331       (GetNumberOfNodesInSplayTree(coder_list) == 0))
 332     return((const CoderInfo *) NULL);
 333   if ((name == (const char *) NULL) || (LocaleCompare(name,"*") == 0))
 334     {
 335       ResetSplayTreeIterator(coder_list);
 336       return((const CoderInfo *) GetNextValueInSplayTree(coder_list));
 337     }
 338   return((const CoderInfo *) GetValueFromSplayTree(coder_list,name));
 339 }
 340 \f
 341 /*
 342 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 343 %                                                                             %
 344 %                                                                             %
 345 %                                                                             %
 346 %   G e t C o d e r I n f o L i s t                                           %
 347 %                                                                             %
 348 %                                                                             %
 349 %                                                                             %
 350 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 351 %
 352 %  GetCoderInfoList() returns any coder_map that match the specified pattern.
 353 %  The format of the GetCoderInfoList function is:
 354 %
 355 %      const CoderInfo **GetCoderInfoList(const char *pattern,
 356 %        size_t *number_coders,ExceptionInfo *exception)
 357 %
 358 %  A description of each parameter follows:
 359 %
 360 %    o pattern: Specifies a pointer to a text string containing a pattern.
 361 %
 362 %    o number_coders:  This integer returns the number of coders in the list.
 363 %
 364 %    o exception: return any errors or warnings in this structure.
 365 %
 366 */
 367
 368 static int CoderInfoCompare(const void *x,const void *y)
 369 {
 370   const CoderInfo
 371     **p,
 372     **q;
 373
 374   p=(const CoderInfo **) x,
 375   q=(const CoderInfo **) y;
 376   if (LocaleCompare((*p)->path,(*q)->path) == 0)
 377     return(LocaleCompare((*p)->name,(*q)->name));
 378   return(LocaleCompare((*p)->path,(*q)->path));
 379 }
 380
 381 MagickExport const CoderInfo **GetCoderInfoList(const char *pattern,
 382   size_t *number_coders,ExceptionInfo *exception)
 383 {
 384   const CoderInfo
 385     **coder_map;
 386
 387   register const CoderInfo
 388     *p;
 389
 390   register ssize_t
 391     i;
 392
 393   /*
 394     Allocate coder list.
 395   */
 396   assert(pattern != (char *) NULL);
 397   (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",pattern);
 398   assert(number_coders != (size_t *) NULL);
 399   *number_coders=0;
 400   p=GetCoderInfo("*",exception);
 401   if (p == (const CoderInfo *) NULL)
 402     return((const CoderInfo **) NULL);
 403   coder_map=(const CoderInfo **) AcquireQuantumMemory((size_t)
 404     GetNumberOfNodesInSplayTree(coder_list)+1UL,sizeof(*coder_map));
 405   if (coder_map == (const CoderInfo **) NULL)
 406     return((const CoderInfo **) NULL);
 407   /*
 408     Generate coder list.
 409   */
 410   LockSemaphoreInfo(coder_semaphore);
 411   ResetSplayTreeIterator(coder_list);
 412   p=(const CoderInfo *) GetNextValueInSplayTree(coder_list);
 413   for (i=0; p != (const CoderInfo *) NULL; )
 414   {
 415     if ((p->stealth == MagickFalse) &&
 416         (GlobExpression(p->name,pattern,MagickFalse) != MagickFalse))
 417       coder_map[i++]=p;
 418     p=(const CoderInfo *) GetNextValueInSplayTree(coder_list);
 419   }
 420   UnlockSemaphoreInfo(coder_semaphore);
 421   qsort((void *) coder_map,(size_t) i,sizeof(*coder_map),CoderInfoCompare);
 422   coder_map[i]=(CoderInfo *) NULL;
 423   *number_coders=(size_t) i;
 424   return(coder_map);
 425 }
 426 \f
 427 /*
 428 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 429 %                                                                             %
 430 %                                                                             %
 431 %                                                                             %
 432 %   G e t C o d e r L i s t                                                   %
 433 %                                                                             %
 434 %                                                                             %
 435 %                                                                             %
 436 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 437 %
 438 %  GetCoderList() returns any coder_map that match the specified pattern.
 439 %
 440 %  The format of the GetCoderList function is:
 441 %
 442 %      char **GetCoderList(const char *pattern,size_t *number_coders,
 443 %        ExceptionInfo *exception)
 444 %
 445 %  A description of each parameter follows:
 446 %
 447 %    o pattern: Specifies a pointer to a text string containing a pattern.
 448 %
 449 %    o number_coders:  This integer returns the number of coders in the list.
 450 %
 451 %    o exception: return any errors or warnings in this structure.
 452 %
 453 */
 454
 455 static int CoderCompare(const void *x,const void *y)
 456 {
 457   register const char
 458     **p,
 459     **q;
 460
 461   p=(const char **) x;
 462   q=(const char **) y;
 463   return(LocaleCompare(*p,*q));
 464 }
 465
 466 MagickExport char **GetCoderList(const char *pattern,
 467   size_t *number_coders,ExceptionInfo *exception)
 468 {
 469   char
 470     **coder_map;
 471
 472   register const CoderInfo
 473     *p;
 474
 475   register ssize_t
 476     i;
 477
 478   /*
 479     Allocate coder list.
 480   */
 481   assert(pattern != (char *) NULL);
 482   (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",pattern);
 483   assert(number_coders != (size_t *) NULL);
 484   *number_coders=0;
 485   p=GetCoderInfo("*",exception);
 486   if (p == (const CoderInfo *) NULL)
 487     return((char **) NULL);
 488   coder_map=(char **) AcquireQuantumMemory((size_t)
 489     GetNumberOfNodesInSplayTree(coder_list)+1UL,sizeof(*coder_map));
 490   if (coder_map == (char **) NULL)
 491     return((char **) NULL);
 492   /*
 493     Generate coder list.
 494   */
 495   LockSemaphoreInfo(coder_semaphore);
 496   ResetSplayTreeIterator(coder_list);
 497   p=(const CoderInfo *) GetNextValueInSplayTree(coder_list);
 498   for (i=0; p != (const CoderInfo *) NULL; )
 499   {
 500     if ((p->stealth == MagickFalse) &&
 501         (GlobExpression(p->name,pattern,MagickFalse) != MagickFalse))
 502       coder_map[i++]=ConstantString(p->name);
 503     p=(const CoderInfo *) GetNextValueInSplayTree(coder_list);
 504   }
 505   UnlockSemaphoreInfo(coder_semaphore);
 506   qsort((void *) coder_map,(size_t) i,sizeof(*coder_map),CoderCompare);
 507   coder_map[i]=(char *) NULL;
 508   *number_coders=(size_t) i;
 509   return(coder_map);
 510 }
 511 \f
 512 /*
 513 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 514 %                                                                             %
 515 %                                                                             %
 516 %                                                                             %
 517 +   I n i t i a l i z e C o d e r L i s t                                     %
 518 %                                                                             %
 519 %                                                                             %
 520 %                                                                             %
 521 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 522 %
 523 %  InitializeCoderList() initializes the coder list.
 524 %
 525 %  The format of the InitializeCoderList method is:
 526 %
 527 %      MagickBooleanType InitializeCoderList(ExceptionInfo *exception)
 528 %
 529 %  A description of each parameter follows.
 530 %
 531 %    o exception: return any errors or warnings in this structure.
 532 %
 533 */
 534 static MagickBooleanType InitializeCoderList(ExceptionInfo *exception)
 535 {
 536   if ((coder_list == (SplayTreeInfo *) NULL) &&
 537       (instantiate_coder == MagickFalse))
 538     {
 539       if (coder_semaphore == (SemaphoreInfo *) NULL)
 540         AcquireSemaphoreInfo(&coder_semaphore);
 541       LockSemaphoreInfo(coder_semaphore);
 542       if ((coder_list == (SplayTreeInfo *) NULL) &&
 543           (instantiate_coder == MagickFalse))
 544         {
 545           (void) LoadCoderLists(MagickCoderFilename,exception);
 546           instantiate_coder=MagickTrue;
 547         }
 548       UnlockSemaphoreInfo(coder_semaphore);
 549     }
 550   return(coder_list != (SplayTreeInfo *) NULL ? MagickTrue : MagickFalse);
 551 }
 552 \f
 553 /*
 554 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 555 %                                                                             %
 556 %                                                                             %
 557 %                                                                             %
 558 %  L i s t C o d e r I n f o                                                  %
 559 %                                                                             %
 560 %                                                                             %
 561 %                                                                             %
 562 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 563 %
 564 %  ListCoderInfo() lists the coder info to a file.
 565 %
 566 %  The format of the ListCoderInfo coder is:
 567 %
 568 %      MagickBooleanType ListCoderInfo(FILE *file,ExceptionInfo *exception)
 569 %
 570 %  A description of each parameter follows.
 571 %
 572 %    o file:  An pointer to a FILE.
 573 %
 574 %    o exception: return any errors or warnings in this structure.
 575 %
 576 */
 577 MagickExport MagickBooleanType ListCoderInfo(FILE *file,
 578   ExceptionInfo *exception)
 579 {
 580   const char
 581     *path;
 582
 583   const CoderInfo
 584     **coder_info;
 585
 586   register ssize_t
 587     i;
 588
 589   size_t
 590     number_coders;
 591
 592   ssize_t
 593     j;
 594
 595   if (file == (const FILE *) NULL)
 596     file=stdout;
 597   coder_info=GetCoderInfoList("*",&number_coders,exception);
 598   if (coder_info == (const CoderInfo **) NULL)
 599     return(MagickFalse);
 600   path=(const char *) NULL;
 601   for (i=0; i < (ssize_t) number_coders; i++)
 602   {
 603     if (coder_info[i]->stealth != MagickFalse)
 604       continue;
 605     if ((path == (const char *) NULL) ||
 606         (LocaleCompare(path,coder_info[i]->path) != 0))
 607       {
 608         if (coder_info[i]->path != (char *) NULL)
 609           (void) FormatLocaleFile(file,"\nPath: %s\n\n",coder_info[i]->path);
 610         (void) FormatLocaleFile(file,"Magick      Coder\n");
 611         (void) FormatLocaleFile(file,
 612           "-------------------------------------------------"
 613           "------------------------------\n");
 614       }
 615     path=coder_info[i]->path;
 616     (void) FormatLocaleFile(file,"%s",coder_info[i]->magick);
 617     for (j=(ssize_t) strlen(coder_info[i]->magick); j <= 11; j++)
 618       (void) FormatLocaleFile(file," ");
 619     if (coder_info[i]->name != (char *) NULL)
 620       (void) FormatLocaleFile(file,"%s",coder_info[i]->name);
 621     (void) FormatLocaleFile(file,"\n");
 622   }
 623   coder_info=(const CoderInfo **) RelinquishMagickMemory((void *) coder_info);
 624   (void) fflush(file);
 625   return(MagickTrue);
 626 }
 627 \f
 628 /*
 629 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 630 %                                                                             %
 631 %                                                                             %
 632 %                                                                             %
 633 +   L o a d C o d e r L i s t                                                 %
 634 %                                                                             %
 635 %                                                                             %
 636 %                                                                             %
 637 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 638 %
 639 %  LoadCoderList() loads the coder configuration file which provides a
 640 %  mapping between coder attributes and a coder name.
 641 %
 642 %  The format of the LoadCoderList coder is:
 643 %
 644 %      MagickBooleanType LoadCoderList(const char *xml,const char *filename,
 645 %        const size_t depth,ExceptionInfo *exception)
 646 %
 647 %  A description of each parameter follows:
 648 %
 649 %    o xml:  The coder list in XML format.
 650 %
 651 %    o filename:  The coder list filename.
 652 %
 653 %    o depth: depth of <include /> statements.
 654 %
 655 %    o exception: return any errors or warnings in this structure.
 656 %
 657 */
 658
 659 static void *DestroyCoderNode(void *coder_info)
 660 {
 661   register CoderInfo
 662     *p;
 663
 664   p=(CoderInfo *) coder_info;
 665   if (p->exempt == MagickFalse)
 666     {
 667       if (p->path != (char *) NULL)
 668         p->path=DestroyString(p->path);
 669       if (p->name != (char *) NULL)
 670         p->name=DestroyString(p->name);
 671       if (p->magick != (char *) NULL)
 672         p->magick=DestroyString(p->magick);
 673     }
 674   return(RelinquishMagickMemory(p));
 675 }
 676
 677 static MagickBooleanType LoadCoderList(const char *xml,const char *filename,
 678   const size_t depth,ExceptionInfo *exception)
 679 {
 680   char
 681     keyword[MaxTextExtent],
 682     *token;
 683
 684   const char
 685     *q;
 686
 687   CoderInfo
 688     *coder_info;
 689
 690   MagickBooleanType
 691     status;
 692
 693   /*
 694     Load the coder map file.
 695   */
 696   (void) LogMagickEvent(ConfigureEvent,GetMagickModule(),
 697     "Loading coder configuration file \"%s\" ...",filename);
 698   if (xml == (const char *) NULL)
 699     return(MagickFalse);
 700   if (coder_list == (SplayTreeInfo *) NULL)
 701     {
 702       coder_list=NewSplayTree(CompareSplayTreeString,RelinquishMagickMemory,
 703         DestroyCoderNode);
 704       if (coder_list == (SplayTreeInfo *) NULL)
 705         {
 706           ThrowFileException(exception,ResourceLimitError,
 707             "MemoryAllocationFailed",filename);
 708           return(MagickFalse);
 709         }
 710     }
 711   status=MagickTrue;
 712   coder_info=(CoderInfo *) NULL;
 713   token=AcquireString(xml);
 714   for (q=(char *) xml; *q != '\0'; )
 715   {
 716     /*
 717       Interpret XML.
 718     */
 719     GetMagickToken(q,&q,token);
 720     if (*token == '\0')
 721       break;
 722     (void) CopyMagickString(keyword,token,MaxTextExtent);
 723     if (LocaleNCompare(keyword,"<!DOCTYPE",9) == 0)
 724       {
 725         /*
 726           Doctype element.
 727         */
 728         while ((LocaleNCompare(q,"]>",2) != 0) && (*q != '\0'))
 729           GetMagickToken(q,&q,token);
 730         continue;
 731       }
 732     if (LocaleNCompare(keyword,"<!--",4) == 0)
 733       {
 734         /*
 735           Comment element.
 736         */
 737         while ((LocaleNCompare(q,"->",2) != 0) && (*q != '\0'))
 738           GetMagickToken(q,&q,token);
 739         continue;
 740       }
 741     if (LocaleCompare(keyword,"<include") == 0)
 742       {
 743         /*
 744           Include element.
 745         */
 746         while (((*token != '/') && (*(token+1) != '>')) && (*q != '\0'))
 747         {
 748           (void) CopyMagickString(keyword,token,MaxTextExtent);
 749           GetMagickToken(q,&q,token);
 750           if (*token != '=')
 751             continue;
 752           GetMagickToken(q,&q,token);
 753           if (LocaleCompare(keyword,"file") == 0)
 754             {
 755               if (depth > 200)
 756                 (void) ThrowMagickException(exception,GetMagickModule(),
 757                   ConfigureError,"IncludeNodeNestedTooDeeply","'%s'",token);
 758               else
 759                 {
 760                   char
 761                     path[MaxTextExtent],
 762                     *xml;
 763
 764                   GetPathComponent(filename,HeadPath,path);
 765                   if (*path != '\0')
 766                     (void) ConcatenateMagickString(path,DirectorySeparator,
 767                       MaxTextExtent);
 768                   if (*token == *DirectorySeparator)
 769                     (void) CopyMagickString(path,token,MaxTextExtent);
 770                   else
 771                     (void) ConcatenateMagickString(path,token,MaxTextExtent);
 772                   xml=FileToString(path,~0,exception);
 773                   if (xml != (char *) NULL)
 774                     {
 775                       status=LoadCoderList(xml,path,depth+1,exception);
 776                       xml=(char *) RelinquishMagickMemory(xml);
 777                     }
 778                 }
 779             }
 780         }
 781         continue;
 782       }
 783     if (LocaleCompare(keyword,"<coder") == 0)
 784       {
 785         /*
 786           Coder element.
 787         */
 788         coder_info=(CoderInfo *) AcquireMagickMemory(sizeof(*coder_info));
 789         if (coder_info == (CoderInfo *) NULL)
 790           ThrowFatalException(ResourceLimitFatalError,"MemoryAllocationFailed");
 791         (void) ResetMagickMemory(coder_info,0,sizeof(*coder_info));
 792         coder_info->path=ConstantString(filename);
 793         coder_info->exempt=MagickFalse;
 794         coder_info->signature=MagickSignature;
 795         continue;
 796       }
 797     if (coder_info == (CoderInfo *) NULL)
 798       continue;
 799     if (LocaleCompare(keyword,"/>") == 0)
 800       {
 801         status=AddValueToSplayTree(coder_list,ConstantString(
 802           coder_info->magick),coder_info);
 803         if (status == MagickFalse)
 804           (void) ThrowMagickException(exception,GetMagickModule(),
 805             ResourceLimitError,"MemoryAllocationFailed","'%s'",
 806             coder_info->magick);
 807         coder_info=(CoderInfo *) NULL;
 808       }
 809     GetMagickToken(q,(const char **) NULL,token);
 810     if (*token != '=')
 811       continue;
 812     GetMagickToken(q,&q,token);
 813     GetMagickToken(q,&q,token);
 814     switch (*keyword)
 815     {
 816       case 'M':
 817       case 'm':
 818       {
 819         if (LocaleCompare((char *) keyword,"magick") == 0)
 820           {
 821             coder_info->magick=ConstantString(token);
 822             break;
 823           }
 824         break;
 825       }
 826       case 'N':
 827       case 'n':
 828       {
 829         if (LocaleCompare((char *) keyword,"name") == 0)
 830           {
 831             coder_info->name=ConstantString(token);
 832             break;
 833           }
 834         break;
 835       }
 836       case 'S':
 837       case 's':
 838       {
 839         if (LocaleCompare((char *) keyword,"stealth") == 0)
 840           {
 841             coder_info->stealth=IsStringTrue(token);
 842             break;
 843           }
 844         break;
 845       }
 846       default:
 847         break;
 848     }
 849   }
 850   token=(char *) RelinquishMagickMemory(token);
 851   return(status);
 852 }
 853 \f
 854 /*
 855 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 856 %                                                                             %
 857 %                                                                             %
 858 %                                                                             %
 859 %  L o a d C o d e r L i s t s                                                %
 860 %                                                                             %
 861 %                                                                             %
 862 %                                                                             %
 863 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 864 %
 865 %  LoadCoderLists() loads one or more coder configuration file which
 866 %  provides a mapping between coder attributes and a coder name.
 867 %
 868 %  The format of the LoadCoderLists coder is:
 869 %
 870 %      MagickBooleanType LoadCoderLists(const char *filename,
 871 %        ExceptionInfo *exception)
 872 %
 873 %  A description of each parameter follows:
 874 %
 875 %    o filename: the font file name.
 876 %
 877 %    o exception: return any errors or warnings in this structure.
 878 %
 879 */
 880 static MagickBooleanType LoadCoderLists(const char *filename,
 881   ExceptionInfo *exception)
 882 {
 883   const StringInfo
 884     *option;
 885
 886   LinkedListInfo
 887     *options;
 888
 889   MagickStatusType
 890     status;
 891
 892   register ssize_t
 893     i;
 894
 895   /*
 896     Load built-in coder map.
 897   */
 898   status=MagickFalse;
 899   if (coder_list == (SplayTreeInfo *) NULL)
 900     {
 901       coder_list=NewSplayTree(CompareSplayTreeString,RelinquishMagickMemory,
 902         DestroyCoderNode);
 903       if (coder_list == (SplayTreeInfo *) NULL)
 904         {
 905           ThrowFileException(exception,ResourceLimitError,
 906             "MemoryAllocationFailed",filename);
 907           return(MagickFalse);
 908         }
 909     }
 910   for (i=0; i < (ssize_t) (sizeof(CoderMap)/sizeof(*CoderMap)); i++)
 911   {
 912     CoderInfo
 913       *coder_info;
 914
 915     register const CoderMapInfo
 916       *p;
 917
 918     p=CoderMap+i;
 919     coder_info=(CoderInfo *) AcquireMagickMemory(sizeof(*coder_info));
 920     if (coder_info == (CoderInfo *) NULL)
 921       {
 922         (void) ThrowMagickException(exception,GetMagickModule(),
 923           ResourceLimitError,"MemoryAllocationFailed","'%s'",coder_info->name);
 924         continue;
 925       }
 926     (void) ResetMagickMemory(coder_info,0,sizeof(*coder_info));
 927     coder_info->path=(char *) "[built-in]";
 928     coder_info->magick=(char *) p->magick;
 929     coder_info->name=(char *) p->name;
 930     coder_info->exempt=MagickTrue;
 931     coder_info->signature=MagickSignature;
 932     status=AddValueToSplayTree(coder_list,ConstantString(coder_info->magick),
 933       coder_info);
 934     if (status == MagickFalse)
 935       (void) ThrowMagickException(exception,GetMagickModule(),
 936         ResourceLimitError,"MemoryAllocationFailed","'%s'",coder_info->name);
 937   }
 938   /*
 939     Load external coder map.
 940   */
 941   options=GetConfigureOptions(filename,exception);
 942   option=(const StringInfo *) GetNextValueInLinkedList(options);
 943   while (option != (const StringInfo *) NULL)
 944   {
 945     status|=LoadCoderList((const char *) GetStringInfoDatum(option),
 946       GetStringInfoPath(option),0,exception);
 947     option=(const StringInfo *) GetNextValueInLinkedList(options);
 948   }
 949   options=DestroyConfigureOptions(options);
 950   return(status != 0 ? MagickTrue : MagickFalse);
 951 }